Mold



March 1929- H. D. RINDSBERG 1,704,018

MOLD

Original Filed April 2, 1926 a tbozv following description.

Patented Mar. 5, 1929.

I 1,704,018 i onrrso snares earner OFFICE.

HARRY n. nrnnsnnno, or CINCINNATI, onro, iissienon crncnnmrr, onro.

T0 nanny J. Harlin, or

MOLD.

Original application filed April 2, 1926, Serial No. 99,407. Ilividedancl this application filed September 14, 1927. Serial No. 219,520.

My invention relates to improvements in molds, and more particularly to the type of mold shown in my (to-pending application, Serial No. 99,407, filed April 2, 1926, of which this application is a division, although applicable to other types of molds.

An important object of my. invention is the provision, in a device of this character, of improved means for removing the core sections. I

Another object of my invention is to provide an adjustable core Supporting rack.

Other objects and advantages of my invention will be apparent during the course of the in the accompanying drawings which form part ot' this specification and wherein like characters of reference denote like or corresponding parts throughout the same,

Figure 1 is a side elevation of my improved mold,

Figure 2 is a similar view showing the mold sections separated and thecores withdrawn, and,

Figure 3 is a detailperspcctive view of the balance arm swiveling member.

l have selected for the purpose of illustration, a one man mold ot' the type shown in my co-pending application above referred to, although the present invention is by no means limited to a mold of this'type.

in the drawings wherein for the purpose ct illustration is shown a preferred embodiment of my invention, the numeral 1 desig natos a suitable base plate on which a pair of mold sections 2 and 3 are mounted as is usual, the mold cavity being arranged in the meeting "faces of the sections 1 and 2 as is also usual.

The construction and operation of this type of mold is fully described in the application of which this is a division and therefore does not require detailed description here. The core members are of the usual construction and comprise a central core member 7 flanked by exterior core members 8, the core 7 having an upstanding rod 9 by toreccive these core members when they are removed from the mold cavity; This holder comprises a pair of ups-1t members 57 secured tofa moldsupport To the upper ends oi the side members 57, a pair of inclined pans or trays 58 and 5,9 are adjimtably secured by brackets or lugs 58 andbi) held in place by bolts 59" which fit inopenings 59", there being .a sutlicient number of openings to allowoit a large range of adjustment; Each oi? these pans or trays may conveniently be made of cast iron or the like but are provided with a lining 60 of sheet brass or other relatively soft metal so as to prevent damage to the core members when the same, are placed therein.

Segment plates 61 are interposed between the mold support andthe arms 57,.the arms 57 being adjustably secured thereto by means of pivot bolts 62 arranged at the lower ends of the segment plates and adjusting bolts 63 extending through arcuate slots 64 in the plates 61. It will be seen that not onlymay the trays be adjusted for different workmen,

but the supporting arms 57are capable of a large range of ad ustment by moving the adusting bolts 63 in the slots 64:. In this way different sizes of workmen may be readily accomodated. I I

Arranged at the upper end of one of the arms 57 is a swivel connection comprising a body portion (35 bolted to the arm 57 and having a vertical bore in its upper end for the receptionof a swivel pin 66 carried by a forked swivel 67. The crotch of the fork is substantially inverted V-shape in crosssection as shown at 68 in dotted lines in Figure 1.

A balance arm 69 is pivotally connected between the arms of the fork at 70 and rests upon the apex of the V at 68. It will be seen that the balance arm is capable ofswiveling about an angle of 360 degrees and is also capable of pivoting about the connection 70 by reason of the V-shaped portion 68.

One end of the balance is provided with a weight 71 adjustably clampedto the arm by means of the bolt 72. The other end of the balance is provided with a chain73 or similar device provided at its lower end with a suitable connection 74- for detachably engaging the arm 9 of the center core section 7. It will be seen that when the core sections are nding arms or side means of integral to be removed, the balance arm can be drawn down and the chain connection 74 attached to the handle 9 of the core section 7 and that the weight 71 will withdraw the core section as shown 1n Figure 2. The balance can then be swun out of the we and the remalnin core sections can be reedlh, removed and placed 111 the trays. It is to be understood,

however, that the balance may be used on molds having any number or" core sectio lVhile I have shown and described the preten-ed embodiment of my invention it is to be understood that various changes in the size, shepe, and arrangementof parts may be resorted to without departing from the nirit of my invon'tiem oithe scope of the subjoincd chi-ims Having thus described any invention, whet Eelaim and desire to protect by Letters Pale tent is 1. In a device of the character described, a mold ha v ing {L core member, 41 supporting; zrrm secured adjacent to said mold, and a weighted pivoted balance arm 'swive'led to said supporting arm and having means on one end for detachable connection with the core member, whereby the weighted balance :1 rm will withdraw the core member from the mold.

2. In device of the character described, a mold having a removable core member, and it core drawing apparatus comprising st swivel connection arranged above said mold, a balance erm pivotelly secured 'to said swivel-connection, a weight arranged on one end'o't th'e beleneeerm, and a member flexibly secured to the other end of the balance arm and adapted for detachable connection with the core member, whereby the weight will pivot the balance arm to withdraw the core member.

A mold core sup iorting ann drawing 211ppara'tus comprising a mold liming e frame L nd a mold section having a cavity open at the top, av plurality of core members adapted to fit within said cavity, a supporting rack, s pivoted balance arm swivcled to the rack and having weight on one end and it member on the other end adapted for detachable connection with one ot the core members whereby the weight will pivotthe balance arm to withdraw the core member, and a. tray on said reel; at e gted to reeeive'the other core members.

l The 'combiimtion with a. nurlding mu chinecompri ng a frame, a support therefor and a pair of separable cnoid sections mounted thereon, each containing con'iplement: ports of the mold cavity, said cavity being pen at the top, of a plurztlitw of core members zidsipted to fit within stud cavity, a supporting ruck carried by the mold support, said ruck being adjust-ably connected to the support, a swivel carried by the rack, :1 balance arm pivotzrlly secured to the swivel, u weight on one endo'f'the l'iwhince arm, and 21 member flexibly connected to theother end of the a rni and adapted for detachable connection with one of the core members to withdraw the same from the mold cm'ity, mid a t-ray cttrried by the rack to receive the other core members.

In testi-u'io'ny whereoi I aflix my signature.

HARRY D. RINDSBERG. 

